public void Init()
{
// maak de spheres
primitive eerstebol = new sphere(1, new float[] { 0, 0, -1 });
primitive tweedebol = new sphere(1, new float[] { 2, 0, -1 });
primitive derdebol = new sphere(1, new float[] { -2, 0, -1 });
primitive vierdebol = new sphere(0.75f, new float[] { 0, 0, 0 });
primitive vijfdebol = new sphere(0.50f, new float[] { -1, 0, 1.25f });
plane cameraplane = new plane(new float[] { 0, 0, -1 }, 3);
camera = new camera(new float[] { 0, 0, 2 }, cameraplane.normal, cameraplane.distancetoorigin, cameraplane.normal);
light lightsource = new light(new float[] { 0, 0, 0 }, new float[] { 1f, 1f, 1f });
// voeg spheres toe aan list
scene.addprimitive(eerstebol);
scene.addprimitive(tweedebol);
scene.addprimitive(derdebol);
scene.addprimitive(vierdebol);
scene.addprimitive(vijfdebol);
scene.addprimitive(cameraplane);
scene.addlightsource(lightsource);
render = new Surface(512, 512);
debug = new Surface(512, 512);
}
plane screenplane;// = new plane(new int[] { 0, 0, 1 },1);
// function: update screenplane corners if camera position or direction is modified
public camera(float[] l, float[] dir, float distancetoorigin, float[] normal)
{
location = l;
direction = dir;
screenplane = new plane(normal, distancetoorigin);
}
// tick: renders one frame
public void Tick()
{
screen.Clear(0);
render.Print("Dit is raytracer, niet game! Kusje, Laura", 2, 2, 0xffffff);
// geef camera weer op scherm
//debug.Box(camera.location[0], camera.location[2], camera.location[0] + 0.1f, camera.location[2] + 0.1f, CreateColor(255,255,255));
List <primitive> primitieven = scene.getprimitives();
int color;
int teller = 0;
foreach (primitive primitieve in primitieven)
{
if (teller > 3)
{
teller = 0;
}
switch (teller)
{
case 0:
color = CreateColor(255, 0, 0); // red
break;
case 1:
color = CreateColor(0, 255, 0); // green
break;
case 2:
color = CreateColor(0, 0, 255); // blue
break;
case 3:
color = CreateColor(255, 0, 255); // pink??
break;
default:
color = CreateColor(255, 255, 255); // white
break;
}
if (primitieve.GetType().Equals(typeof(plane)))
{
plane screenplane = (plane)primitieve;
// vanuit positie camera en richting camera en FOV (hoek) en afstand camera tot scherm
// (FOV is nu 90)
// bepaal je de lengte van het scherm.
float[] middenscreenplane = new float[3];
middenscreenplane = nieuwelocatie(camera.location, screenplane.distancetoorigin, camera.direction);
float lengtehalfscherm = (float)(Math.Tan(45) * screenplane.distancetoorigin);
float[] punt1 = nieuwelocatie(middenscreenplane, lengtehalfscherm, nieuwerichting(camera.direction, 1));
float[] punt2 = nieuwelocatie(middenscreenplane, lengtehalfscherm, nieuwerichting(camera.direction, 0));
debug.Line(0, punt1[2], punt2[0], punt2[2], CreateColor(0, 255, 0));
// op basis van de lengte van het scherm en de normaal (of de kijkrichting) bepaal je
// de uiterste punten van de plane, zowel x, y als z
// met x en z teken je de plane als een lijn op je scherm
//debug.Plane(plane.position,plane.width,plane.height, color);
teller++;
}
else if (primitieve.GetType().Equals(typeof(sphere)))
{
sphere bol = (sphere)primitieve;
debug.Circle(bol.position[0], bol.position[2], bol.radius, color);
teller++;
}
}
render.CopyTo(screen, 0, 0);
debug.CopyTo(screen, 512, 0);
// TODO teken hier de spheres: links in 3d en rechts in 2d bovenaanzicht
}